python怎么根据url下载图片

你可以使用Python中的requests库来下载图片。以下是一个简单的示例代码：

import requests

def download_image(url, file_path):
    response = requests.get(url)
    if response.status_code == 200:
        with open(file_path, 'wb') as file:
            file.write(response.content)
            print(f"Image downloaded successfully to {file_path}")
    else:
        print("Failed to download image")

# 用法示例
url = "https://example.com/image.jpg"
file_path = "image.jpg"
download_image(url, file_path)

在上面的示例中，我们定义了一个download_image函数来下载图片。你只需要传入图片的URL和保存的文件路径作为参数调用该函数即可下载图片。